Updated mediawiki/extensions
Project: mediawiki/extensions/EventLogging  345359bfb808654967996f67a8ff1e416092fbde

Documentation: fix apt-get install instructions.

Added a continuation character to apt-get command line example for
easier cut-n-paste usage of same.

Change-Id: I719d8d489bbb04a46a3b8a405957b3c6e76e156d